Without known which KBnnnnnn (the patch that is being installed) this discussion can't start. However I did run into this exact issue on a machine that had Windows 7 and they were using something called an "Activator." That didn't end well.
Bob
I have a dell studio 1555 with 4.oo ram intel core duo t6600 2.20 and windows 7 64 bit. I have found that every time I get any kind of updates my programs (internet explorer, media center,games such as solitare, spider solitare, etc) will not respond and says it can not find an exe file. I can use the restore and go back to a time before any updates and it will start working again. Pleas help..

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic